Here is a blank make your own slide rule kit from Dyna-Slide. There is a no 21 blank with a sealed envelope that I assume holds the hardware and an instruction book. Not a common rule to find, get one

 

Check out my other items! Right Hand ( right handed person ) - Used Used RH VEMCO MD 612 V TRACK ( This units is very good for the Board size 32 x 42 TRACK Type Drafting Machine Model 612 Track Machin

 

This cute little pocket telescope is in very good original condition. The optics are pretty clear. It is marked "Pockescope Sr Patent Appl'd For Woolensak Rochester U.S.A.". It measures about 3 1/4 in

 

This sale is a for 2 booklets (one is a catalog) of Pickett slide rules. Buyer is responsible for the shipping costs. The shipping is figured on the location of the buyer and the weight of the item. W

 

The Kit Includes: 1 - • Magnetic Capacity: 8 LBs - • Diameter of Magnetic Base: 2-1/4" - • Pull Handle Quick Release - • Rubberized Grip Handle - • Compact Size - • Weight of Object must b

 

Here is a Vintage Dietzgen Drafting Set made in Germany U.S.Zone-- Pennsylvania State University Special. It is in need of a good cleaning and it may be made of nickel or stainless steel. There are Fo

 

Rare Antique Clock Thermostat Thermometer. Great & Unusual Item. Check out my other vintage listings. New cool items added often. U.S. Shipping ONLY. Best of Luck !

 

-+ Dated October 28, 1898 out of Little Clear Creek Mining District in Alaska. It measures approx 6-1/4" x 8". Creasing and folds. Writing is in excellent condition. I put a "-?-" where I couldn't mak

 

Affordable gallery quality NEW Kaleidoscope from Collier. • Black Bling Color Spirit has beautiful hand designed clay art pieces, beads and other objects themed in Gold inside. • Mineral oil fille

 

Tellurium Metal 99.97% Up for sale we have small pieces of Tellurium. They are shiny grey colored and range in size from dust to small pieces almost 3mm. The mass of the pieces is a little over 8g. I